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Geomechanics and Engineering Volume 13, Number 4, October 2017 , pages 653-669 DOI: https://doi.org/10.12989/gae.2017.13.4.653 |
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Investigation of the effect of surcharge on behavior of soil slopes |
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Mohammad Mahdi Aminpour, Mohammad Maleki and Ali Ghanbari
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| Abstract | ||
| By increase in the population and consequently constructions, new structures may be built in vicinity of the soil slopes. Such structures can be regarded as an extra surcharge on the slopes. The intensity and location of the surcharge affects the displacements of the slopes. Few researchers have studied the effect of surcharge on displacements of soil slopes. In this research, using limit analysis method and upper bound theory with non-associated flow rule, displacements of soil slopes in vicinity of a surcharge has been estimated. The authors have improved the technique previously proposed by them and a new formulation is suggested for calculating the permanent displacements of the soil slope in presence of a surcharge for two failure modes, rotational and transitional. A comparison has also been made between the two mentioned modes for various conditions of surcharge and slope. The conditions resulting in the rotational mode to be more critical than the transitional mode have been investigated. Also, the effects of surcharge\'s intensity, location of surcharge as well as the soil properties have been investigated. | ||
| Key Words | ||
| surcharge; soil slopes; displacement; limit analysis | ||
| Address | ||
| Mohammad Mahdi Aminpour and Mohammad Maleki: Department of Civil Engineering, Bu-Ali Sina University, Hamedan, I.R. Iran Ali Ghanbari: Faculty of Engineering, Kharazmi University, No. 49 Mofatteh Ave. Tehran, I.R. Iran | ||